Lubricator.



Patent@ 00t.7,1913.

S. D. JONES.

LUBRICATOR.

I if@ f lunnm APPLICATION FILED SEPT. 9, 1912.

STABKY DANIEL JONES, OF GEORGETOWN, COLORADO.

LUBRICATOR.

Application filed September 9, 1912.

To all whom t may concern.'

Be it known that I, STARKY D. JONES, a citizen of the United States, residing at Georgetown, in the county of Clear Creek and State of Colorado, have invented certain new and useful Improvements in Lubricators, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to lubricators and more particularly to a lubricator which is especially designed for use upon drills and other machines of that character which employ compressed air as an actuating medium, the invention having for its primary object to materially improve, simplify and increase the efficiency of the lubricator shown and described in Patent Number 1,002,917, issued to me September 12, 1911.

Another object of the invention resides in the provision of an oil containing reservoir and means for supplying air thereto, said latter means including a main air passage adjunctively located with relation to the reservoir, a tube extending into the reservoir and adapted to receive the oil under pressure of the air in the reservoir, and means for directing the oil int-o the main air passage to be carried by the air current to the parts to be lubricated.

A further object of the invention is to provide a lubricator consisting of comparatively few elements which may be inexpensively manufactured and easily and quickly assembled and which combine to produce a device of great reliability and efliciency in practical use.

lVith the above and other objects in view as will become apparent as the description proceeds, the invention consists of certain constructions, combinations and arrangements of the parts that 1 shall hereinafter fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which- Figure 1 is a longitudinal section of a lubricator embodying the present invention; Fig. 2 is a section taken on the line 2 2 of Fig. 1; and Fig. 3 is a sect-ion taken on the line 8 3 of Fig. 1.

Referring in detail to the drawing 5 designates the body of the lubricator which is longitudinally bored at one side of its center to provide an air passage 6 therethrough.

Specification of Letters Patent.

Patented Uct. 7, 1913.

serial No. 719,401.

A longitudinal chamber or oil reservoi!l 7 is also formed in the body of the lubricator, one end of said chamber being permanently closed. The other end of the reservoir is provided with a reduced internally threaded portion 8 to receive the externally threaded end of a closure plug or head 9. This closure plug or head consists of a cylindrical body having an annular flange 10 formed thereon adjacent one of its ends to be received in an annular recess formed at the outer end of the opening in the end wall of the reservoir, a packing ring or gasket 11 being disposed in said recess between the base thereof and the flange 10. The head 9 is further provided with a rectangular boss or extension 12 to receive a suitable wrench whereby the head may be threaded into the end wall of the reservoir.

At the inner end of the threaded portion of the head 9 the saine is provided with an annular groove or channel 18 into which the outer end of a transversely extending port 14 opens. The inner end of this port extends beyond the center of the head 9 and from the same a duct 15 extends longitudinally through the head and opens int-o the reservoir or chamber 7.

An oil receiving tube or pipe 16 is centrally located and longitudinally disposed within the reservoir 7. One end of this tube is provided with exterior screw threads for engagement with a threaded opening indicated at 17 formed in the end of the head 9 which communicates with the transverse port 14. The other end of the tube 16 is slightly spaced from the closed end of the oil reservoir and within the same a valve seat 18 is suitably secured. The valve ball 19 is normally engaged upon this seat and closes communication between the interior of the tube 16 and the reservoir 7.

One end of the air passage 6 is enlarged and threaded to receive the coupling mem-- ber on the end of a hose, (not shown), extending from a source of air supply. The other end of the air passage 6 is similarly threaded for the connection thereto of a suitable nipple whereby the lubricator may be connected to the air intake port of the drill or other machine. A valve 20 is provided with a single port 21 the ends of which are adapted to engage the opposite walls of the passage 6 when the valve is rotated. The valve 20 tapers longitudinally and is held in close frictional engagement with the walls of the passage by means of a coil spring 22 located in a chamber'ed head or 'plug' E23 which is threaded in the body 5. Said spring bears against the larger end of the .valve 2O and tends to force the same inwardly. rThe opposite end of the valve is provided with a reduced rectangular portion to receive a suitable handle 24 whereby said valve may be readily rotated. As the valve or its seat becomes worn, the spring 2Q. acting upon the valve member takes upv this wear and at all times holds the valve in close engagement with the walls of its seat.

In the body 5 between the valve passage 6 and the reservoir 7 an inclined port 25 is formed, one end of which opens into the air passage 6, while the other end thereof opens into the annular groove or channel 13 provided in the head 9. Y

From the above desc "iption of the con-y struction Vof the device, its operation will be understood as follows: l/Vhe'n the supply of air to the drill is cut off by turning the valve 20 to its closed position, the air enters the reservoir 7 and the tube 16 through the ports 25, 111 and duct 15v and completely lls the same as well as the annular channel 13.y Upon the opening of the valve 2'() to supply air to the drill, the passage of the `air through the line 6 creates a suction through the port 25 and quickly draws the air from the tube 16 so that the air pressure within the reservoir 7 can act upon the oil and force the valve 19 from its seat, thus permitting the oil to enter said tube. The continued suction in the tube 16 draws the oil upwardly, a few drops thereof escaping through the port 25 into the'air line passage 6 to be carried by the air to the parts of the drill or other machine. It will, of course, be understood thatair is also withdrawn by suction from the reservoir 7 through the port 15, but this withdrawal of the air from the reservoir will be comparativelyslow. lNhen the air pressure in the reservoir 7 has been reduced, the escape of oil through the passage 25 ceases. There will be but a few drops of oil drawn into the air line passage upon each opening of the valve 20. As soon as this valve is closed, the air again enters the reservoir 7 and tube 16 so that the supply of oil will be repeated when communica- Y tion between the source of air supply kand the drill or other machine is again opened. 1t will further be appreciated that the air remaining in the annular channel 13 assist-s in discharging the oil into the port 25.

From the foregoing it will be seen that I Vhave materially simplified and improved the construction of the lubricator as disclosed in my prior patent hereinbefore referred to. The lubricatingoil is automatically supplied to the working parts of the drill when the air is turned on, thus relieving the operator of the attention to the machine which has heretofore been required in order that the various elements thereof may be kept in a thoroughly lubricated condition. rllhe head 9 may be readily removed and the various parts thereof as well as the tube 16 and the interior of the reservoir 7 thoroughly cleaned and such deposits as may have been present in the lubricant removed.

It will bereadily apparent that as the device consists of but few elementswhich are of comparatively simple form, the invention may be produced at comparatively small cost. Y

While 1 have shown and described the preferred form and arrangement of the various parts, itv will be understood that theV device is susceptible of considerable modification without departing from the essential features or sacrificing any of the' advantages of the invention.

Having thus described the invention what is claimed is: y

1. A lubricator of the character described comprising a body having an air lline passage and an oil reservoir, a valve located in said passage, a removable head arranged `in one end of said reservoir and provided with a port opening into the same, said body having a single port connect-ing the' port in said head with the air line passage and through which air is admitted to the reservoir when the valve is closed, and means connected to said head through which oil is drawn by suction through the,communicating ports in the head and body and into t-he air line passage vwhen said valve is opened. Y

2.- A lubricator of the character described comprising a body having 'an air line passage, and an oil reservoir in said body providedr with a port connecting said passage with one end of the reservoir, a valve located in said passage, means mounted in said reservoir and provided with ports connectingV said port with the reservoir chamber, and a valved oil receiving tube extending 'into the reservoir, oil being suppliedV to said tube under pressure of air in the reservoir, the opening of said valve in the air line passage creating a suction through said ports whereby the oil is drawn from the tube into the air line passage.

3. A lubricatoro-f the character described comprising a body having an air line, passage therein and an oil reservoir, communieating ports to admit air from said passage into the reservoir,- an oil receiving tube in said reservoir opening at one of its ends into one of said ports, a valve located in the' valve creating a suction through 'said ports i' to withdraw the air fromV the tube and allow the air pressure in the reservoir to force the oil into said tube from which the same is drawn through said ports into the air line passage.

4. A lubricator of the character described, comprising a body having a longitudinal air line passage and an oil reservoir therein, a removable head threaded in thel body and closing one end of the reservoir, said head being provided with a port and having a duct connecting said port with the interior of the reservoir, said body being provided with an inclined port connect-ing the port in said head with the air line passage, an oil receiving tube connected to the head and extending into said reservoir, one end of said tube opening into the port in said head, and a valve located in the air line passage to open and close the saine, substantially as and for the purpose specified.

5. A lubricator of the character described, comprising a body having a longitudinal air line passage and an oil reservo-ir therein, a head threaded in the body to close one end of the reservoir, said head being provided with a transverse port and having a duct connecting the port With the interior of the reservoir, said body being provided with an inclined port connecting t-he port in said head with the air line passage, an oil receiving tube threaded in the head and opening at one end into the port thereof, said tube extending into the reservoir, a ball valve seated in the other end of the tube and normally closing the same, and a rotary valve located in the air line passage, sub stantially as and for the purpose specified.

G. A lubricator of the character described, comprising a body having a longitudinal air line passage and an oil reservoir therein, a head threaded in the body to close one end of the reservoir, said head being provided with an annular channel in its periphery and passages connecting the channel to the interior of the reservoir, said body having an inclined port connecting the channel in said head with the air line passage, a rotary valve located in said air line passage, and means connected to the head and extending into the reservoir through which oil is supplied to the air line passage When said valve is opened..

7. A lubricator of the character described, comprising a body having an air line passage and an oil reservoir therein, a rot-ary valve located in the air line passage to open and close the same, a removable closure head for one end of the oil reservoir, said head being provided With an annular channel and a transverse port communicating therewith and having a duct leading from the inner end of the port into the reservoir, said body having an inclined port communicating at one end With the channel and opening at its other end into the air line passage, and means carried by the head and extending into the reservoir to supply oil through said ports into the air line passage When the valve is opened.

8. A lubricator of the character described comprising a body having an air line passage and an oil reservoir therein, a valve located in the air passage to open and close the same, a removable head threaded in the body to close one end of the reservoir, said head being provided with an annular peripheral channel and a transverse port opening at its outer end into the channel, said head also having a duct connecting one end of said port With the interior of the oil reservoir, a tube threaded in the head and communicating with the port thereof, said tube extending through the reservoir for substantially the entire length, a valve located in the inner end of said tube to normally close communication between the same and the reservoir chamber, said body being provided with an inclined port connecting the annular channel in the head with the air line passage, oil being drawn from the reservoir through said tube and the ports in said head and body into the air line passage When said valve is opened.

In testimony whereof I hereunto affix my signature in the presence of tivo Witnesses.

STARKY DANIEL JONES.

Witnesses:

H. W. KIRBY, JOHN A. REYNOLDS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patenti, Washington, D. C. 

